121102211002121 has 8 divisors (see below), whose sum is σ = 134974600498080. Its totient is φ = 107979680397888.

The previous prime is 121102211002049. The next prime is 121102211002153. The reversal of 121102211002121 is 121200112201121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121102211002121 - 2²² = 121102206807817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121102211002121.

It is not an unprimeable number, because it can be changed into a prime (121102211002321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187464722591 + ... + 187464723236.

It is an arithmetic number, because the mean of its divisors is an integer number (16871825062260).

Almost surely, 2^{121102211002121} is an apocalyptic number.

It is an amenable number.

121102211002121 is a deficient number, since it is larger than the sum of its proper divisors (13872389495959).

121102211002121 is a wasteful number, since it uses less digits than its factorization.

121102211002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374929445863.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121102211002121 its reverse (121200112201121), we get a palindrome (242302323203242).

The spelling of 121102211002121 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred eleven million, two thousand, one hundred twenty-one".